Implementation of Patient-Specific Quality Control in Radiotherapy Treatments with ArcCheck: Implementación de un control de calidad de paciente específico en tratamientos de radioterapia con ArcCheck

• Autores: Alva Sánchez, Mirko Salomón, Linhares, Isabela, Maulaz, Carolina, Frohlich, Bruna, Scheid, Artur, Fischer, Matheus, Martins Dias, Telpo, da Rocha Estácio, Daniela
• Formato: artículo
• Fecha de Publicación: 2024
• Institución: Universidad Ricardo Palma
• Repositorio: Revistas - Universidad Ricardo Palma
• Lenguaje: español; inglés
• OAI Identifier: oai:oai.revistas.urp.edu.pe:article/6793
• Enlace del recurso: http://revistas.urp.edu.pe/index.php/RFMH/article/view/6793
• Nivel de acceso: acceso abierto
• Materia: ArCHECK; Radiotherpy; VMAT; Gamma Index; ArcCHECK; Radioterapia; Índice gama

Introduction: Quality control is essential to ensure safety and prevent errors in the administration of ionizing radiation across various radiotherapy techniques. Objective: To evaluate the performance of the ArcCheck detector with the goal of implementing a specific quality control technique for patients treated with dynamic arc therapy. Methods: Fifty patients treated with 6 MV and 10 MV energies on the Clinac® Varian CX were selected. Doses at the isocenter of each treatment plan were analyzed using a PMMA phantom (30 x 30 x 15 cm³) to validate reference values between the treatment planning system and the ionization chamber. The treatment plans were also recreated using the ArcCheck. Results: The mean dose difference at the isocenter was -0.96% and -1.34% for 6 MV and 10 MV, respectively. The average passing rate of the dose distributions in the gamma analysis exceeded 98.0% for both energies. Conclusion: The results demonstrated good concordance with the TG-119 and TG-218 protocols, supporting the use of the detector for quality control in patient-specific treatments.